Book-back-gluing machine



J. J. PLEGER Boox BAG: GL'UING MACHINE Filed r11 5 1927 5 Sheets-Sheet 1 fn vn for# f Nav. s, 192s. 1,690,945

J. J. PLEGER Y BOOK BACK GLUING vIIAQHINE Filed April s. 1927 A s sheets-sheet 2 fnvenwf-foox BACK @Lumi MACHINE Filed April 5. 1927 5 Sheets-Sheet 3 fig. .5.

/? JlD/eger.

Nov. 6, 1928.

J. J. PLEGER BOOK BACK GLUING MACHINE Filed April 5, 1927 5 Sheets-Sheet 4 .fo/m P16 9.9,,

J. J. PLEGER BOOK BACK GLUING MACHINE Nov; 6,. 1928.

Filed A prl 5. 1927 5 Sheets-Sheet 5 fzvefzfaff du J Player.

Patented Nov. 6, 1928.

' UNITED STATES JOHN J. PLEGERfOF CHICAGO, ILLINOIS.

BOOK-BAGKGLUING MACHINE.

Application led April 5,

This invention relates to improvements in devices for applying adhesive toy the backs of books or pamphlets in preparation for the reception of a pape-r cover or for rounding and backing when books are bound with a stift or board cover.

The principal object of the invent-ion is to provide a machine which will apply the adhesive to the books or pamphletsrapidly and uniformly.

The invention further relates to certain novel mechanical features and structural details hereinafter set forth and illustrated in the attached drawings, in which:

Figure 1 is a plan view of a machine made in accordance with my invention Fig. 2 is a side elevation offthe machine;

Fig. 3 is an end` elevation of the machine;

Fig. 4 is a section on the lino Fig. 3;

Fig. 5 is a section on the line 5-5, Fig. 1;

Fig. 6 is a section on the line 6G, Fig. 5;

Fig. 7 is a section on the line THT, Fig. 5, and

Fig. 8 is a fragmentary sectional view illustrating a modification.

Referring to the drawings, the machine comprises a suitable framework consisting of a pair of side pieces 1 and 2 joined together by suitable cross bars 3, L1, 5, 6, 7, 8, 9 and 10.

Supported on brackets 11 at the top of the frame are a pair of longitudinal rails or tracks 12 in the form of channels, these rails extending the entire length of the frame and at one end supporting a table 13. The rails 12 constitute tracks for a carriage 1st. The carriage 14 consists, as best shown in Fig. 1, of a more or less open frame having at one side two supporting wheels 15 which operate in one of the rails and comprising a transverse arm 16 extending across the frame and carrying a single wheel or roller 1'? which operates in the rail at the opposite side of the frame. n

The forward end of the carriage is connected through a rod 18 with a crank arm 19 on a jack shaft 20, which shaft is journaled in a bearing 21 at one end of an arm 22 the other end of which is secured to a vertical shaft 23 at the table end of the frame, all as well shown in Figs. 1 and 1. The arm 22 carries a freely rotatable gear 2a on its under side which meshes with a stationary gear secured by bolts 26 to the cross bar of the frame, the gear 25 being concentric with the shaft 23 which extends through an opening in the gear. The gear 24 also meshes 1927. Serial No. 181,053A

with a gear 2T on the verticalshaft 20 journaled as previously described in the outer end of the arm 22. vWhen under these conditions thel shaft 23 is rotated from a source hereinafter described, the resulting movement of the arm 22 results through the medium of the fixed gear 25 and the pinion 2st in an independent rotation oit' the shaft 20, and the direction of rotation of the latter shaft is opposite to the direction of rotation of the shaft 23, so that as the arm 22 swings clockwise from the position shown in Fig. 1, the arm 19 will be swung in the opposite direction and will lie directly over the arm 22 when the latter has advanced in its angular movement through an angle of 90. Continued angular movement through a further angle of 90 again brings the arms 22and 19 into the extended position, as shown in Fig. 1, but .in a diametrically opposite direction. It will be apparent that this gives the same e'li'ect, so far as the travel of the carriage 14; is concerned, as though a single crank arm equal in length to the joint length of the arms 22 and 19 were used on the shaft 23 instead of the arrangement described, but by the latter device the space covered by the arms when extending transversely of the frame is cut in half, and the arm 19 does not project be yond the side of the frame at any part of the movement.

The shaft 23 carries at its lower end a bevel gear 28 which meshes with a bevel gear 29 on a transverse shaft 30, and this latter shaftcarries a gear 31.- which is operatively` connected through the medium of a pinion 33 and suitable reduction gearing' enclosed 1n a housing 34 with an electric motor 35 which constitutes the prime mover of the machine.

As shown in Fig. 3, the gear 29 turns loosely on the shaft and is adapted to be operatively connected with the shaft through a clutch 86. The clutch 36 is operated through a lever 8'? pivoted at 38 to the frame, and this lever is operatively associated with a treadle 89 pivoted to the frame at 40. The treadle is normally held in an elevated position through 'the medium of a spring 41 and a link 42, and the arrangement is such that when the treadle is depressed, the clutch member' 36 is oscillated in such manner as to engage the clutch and thereby effect an operative connection between the shaft 30 and the gear 29. The upper end of the lever 37 carries on a vertical `pin a roller 43, and this roller is adapted to be engaged by an arm` 44 on the shaft 23 as the latter rotates in such manner as to disengage the clutch 8oV which previously has been engaged, as dcscribed, by means of the Vtreadle. The rangement is such that following the initial engagement of the clutch 86 by pressure of the treadle 39, the clutch Will remain in engagement of its own accord during one complete rotation of the shaft 28, after which the arm 44 engages the roller 48 and shifts the lever 37 to disengage the clutch. ln each instance, the mechanism is so timed that the clutch is disengaged When the carriage 14 occupies the rear end of its travel, as shown in Fig. l, and from this position a complete rotation of the shaft 28, occurring when the treadle 89 is depressed, Will move the carriage through one complete reciprocation in the frame.

Pivotally mounted in the` frame below the rails 12 is a frame 45, this frame being pivoted at one side on a pin 46 in the frame and at the opposite side on a pin 47 .on an arm 48 projecting inwardly from the side piece l or the frame. The frame carries a rotary gluing roll 49 and is .supported by one of a pair of arms 50-51 which are carried by a rock shaft V52 journaled in arms 53 depending from the frame and which, as shown in Fig. 3, project inwardly andcarry at their inner ends in each instance an arm 54 havin.0V a roller at the top, which in the case of the arm engages the under side of a projecting arm on the frame 45.

rlhe shaft 52 has extending upwardly therefrom an arm 57 which carries at the 'top a roller 58 Whichnormally occupies position in theV path of a cam bar 59 at one side of the carriage 14 whereby as the carriage is moved forwardly, as described above, the cam 59 engaging the roller 58 shifts the upper end of the arm 57 outwardly., thereby rocking shaft 52 and through the arm 50 eleva'L 4 frame 45 with its gluing roll 49 around the pivotsv 46-'47 The cam bar 59, as shovvn in Figs. l and 8, is carried by arms 60 proj ee ting transversely from the carriage 1.4 and over the outer side of the rail 12.

' The arm 51, as shown in Fig. 8, extends inwardly and through the extension and roller 55 thereof engages the under side of aY lever arm 6l on a transverse shaft 62 suitably journaled in the frame, and this shaft cari es arms 68, 68 Which at their outer ends support in a position adjacent the rear side of the roller 49 a frame 64 in Whichris supported a pair of transverse brushes 65. lt will be apparentthat the rocking of the shaft 52 as described through the medium of the cam 59 on the carriage results in the elevation of these brushes in substantially the saine manner and at the samel time as the elevation of the adhesive roll 49.

The roll 49, which is mounted on a shaft 66 journaled in open bearings 67 in the frame 45,

is normally rotated from the motor 85 through transmission consisting of a gear 68 on the roll shaft 56, an intermeshing gear 69 on a jack shaft 7 (l j'ournaled in the frame, a gear 7l at the outer end of the shaft 70, a pinion 72 meshing With the gear 7l and carried by a second jack shaft 78, a sprocket 74 at the outer end of the shaft 7 3, a drive chain 7 5 which connects the sprocket 74 with a sprocket 7 6 on the shaft 30, and the gearing previously described Which connects this shaft 30 With the motor.

Means is provided, however, for accelerating the rotative velocity of the roll 49 during the period that the roll is elevated, as previously set forth. It will be noted by reference to Fig` l that the shafts 70 and 7 3 `carry intermeshing gears 77 and 78 respectively. The gear 78 is fixed to the shaft 7 3, While the gear 77, as shown in Fig. 5, is loosely mounted upon a sleeve 79, lwhich in turn journals on a collar 8() lreyed to the shaft 70. Also as shown in Fig. 5, the gear 7l is secured through the medium of a feather 8l to the said sleeve 79, and is normally operatively connected With the shaft 7 (l through a ratchet clutch consisting, as shown in Fig. 7, of a series of rollers 82 seated in beveled recesses in the periphery of the collar 80 and adapted to iii; the sleeve 79 with the said collar in one rotative direction only. In other Words, as the sleeve or bushing 79 movesA in the direction .indicated hy the arrow in Fig. 7, the rollers 82 are wedged into the narrow ends of the recesses 83 which they occupy and thereby frictionally secure the bushing 79 and the collar 80 together so that the collar is rotated vrith the said bushing.

is vpreviously stated, the gear mounted on the bushing 79 )ut is adapted to be connected With the shaft` through the medium of a clutch consisting of a'collar 84 splined to the shaft 70 and carrying a projecting pin 85 which when the collar 84 is advanced against the tension of a spring 86 in a manner hereinafter set forth enghges one of series of pins 87 carried and projecting from one Aface of the gear 77, as shown in Fig. 5. As shown, the pin 85 is slidable in the cellar 84 and is normally held in an advanced proecting position by a spring 88 sho-wn in Figs. 5 and 6, which permits the pin to move rearwardly in the event of the end ofthe pin meeting the outer end of the piu 87 on the 7 7 is loosely rilhe eilect of the engagement of the pins 85h87 is to iii: the gear 77 with respect to the shaft 7 0 whereby the gear 78 becomes effective to rotate the shaft 70 in the same direction as it is normally rotated through the pinion 72 but at a higher rate of speed,and this is permit-ted by the ratchet clutch 82-88 previously described. The operation Will be clear by reference to Fig. 7, Where it Will be noted that if the bushing 79 is rotating in the direction of the arrow and carrying With it through the rollers 82- the collar 80 as previously described, there is nothing to prevent an acceleration of the rotation of the shaft and collar 'in the same direction, by reason of the fact that the rollers 82 are inoperative to prevent relative angular movement betiveen the bushing 79 and the sleeve 80, eX- cept in opposite directions.

The collar 811 is advanced and retracted to the clutch-engaging and disengaging positions through the medium of the arm 57 which as shown in Fig. 6 is in the form otl an open yoke embracing and pivotally engaged with the collar 811 through set screws 89. As previously described, the arm 5T is moved outwardly when the carriage 14 is at vanced through the cam F9 on the carriage which engages the roller 58 at the top ot the arm. The outward movement of the arm 57, therefore, results not only in elevation of the adhesive roller Li9 and the brushes 05, 65, but also results in an acceleration in the rotative speed of the roller 19 as described above.

It is desirable, as will be made cle; ihef-:einatter, that the adhesive roll L t9 be elevated and accelerated only when the carriage ift is moving forwardlyY trom the position shovvn in 1. In order to prevent the elevation and acceleration of the roller during the return movement or" the carriage, I mount the cani-engaging roller 58, as shown in Fig. 1, upon an arm 9G pivoted at 9T at the top ot ie arm 57 and adapted to siving to a horizontal position away from the abutting portion 98 of the arm 5"?. rllhe arm 96 is resiliently held against the abutment 98 by a spring 99. .lt will be apparent under these conditions that When the carriage 11i is advanced trom the position shown in Fig. l, the resulting en- Yement of the roller 58 with the cam 59 results in an oscillation of the arm 5T as described. Then on the return nioven'ient ot' the carriage 14 the roller 58 is engaged by the cani 59, the direction of the applied forces is suoli that the arni 96 is sivung on its pivot 97 aivay from the abutment 98 and against the tension ot the spring 99, with the result that the arm 57 remains in its normal advanced position which is controlled, as shoivn in Fig. 5, by the abutment of the cellar-8e against the traine piece 1, and the gluing roll e9 remains in the normal depressed position and rotates at tl e normal spee it will be noted that the bracket 45 carries a relatively small solid roller which adjustable through its supporting sleeves 91, 91 relative to the face of the roll i9, and this roll 90 normally in Contact with the surthe roll t9 to properly distribute the face or adhesive `which is picked up on the sur tace of the roll. troni an adhesive container 91:L iininediately under the roll position. This container 91 which includes a heating element 92 is carried by a support 93 on the upper end of e threaded sha't or screiv 94 Which is threaded in a vertical position in the franie cross piece 10, as best shown in Fig. At the bottom of the shaft 94 is a hand Wheel 95 by means ot' which the shaft may be rotated to adjust the vertical position of the adhesive container. It will be noted that the cross pieces 8 ivith the cross pieces 9 act as guides and braces for the adhesive container 91"- in its various adjusted positions. lt will also be noted that the cross-bar 6 carries a second electric or other heating element 103. See Fig. il, 'for heating the adhesive in separate receptacles.

lt ivill be noted by reference to Figs. 1 and el that immediately belen7 the initial position of the carriage 111-, in which it is shown in `Fig. 1, there located a table 100, this table being supported on the cross bar 7. In operation, the books are placed on this table with their backs or bound edges down and are -forced by the operator into the angle lietween the main body of the carriage 14 and the proj ecling arm 1G, as indicated in broken lines in lfig. 1. The inner edges of the main part oi the carriages tical flange 101, and the inner edge of the arni 16 is provided with a similar upstanding flange 102, and these flanges in meeting torni an angle oi 90". is against these flanges and into the corner Where they meet that the books are firmly pressed with their bound edges resting on the table 100, and the flange 1.01 is provided with a slot 10d for the reception ot a board to build up the height of the flange for large books. Pressure is now applied by the operator or through any desired means to clamp the books against the flanges 101 and 102 so that as the carriage advances, as hereinbetore described, the books move therewith and are held in position against the flanges 10i)J after the carriage advanced to such a distance that the sugport of the table is removed.

ln practice, therefore, after the operator has adjusted the desired number ot' books against the flanges 101 and 102 and on the table 100 as described, he depresses the treadle 39, which initiates the movementl ot the carriage towards the gluing roll 4,9. As described, the books are held firmly in the adj usted position against the flanges 101 and 102 by the hand of the operator or by any other means that may be desired. lt will be noted that the inner face ot' the arm 1G against which the books bear is inclined to the line of movement of the carriage. As the carriage advances, the gluing roll Li9 is elevated to such an extent that it moves into the path and contacts with the bound edges of the books which are carried over the roller and receive therefrom a coating of the adhesive. Simultaneously with the elevation ot' the roll Li9, its acceleration is increased, also as previously described, .vhcreby the glue is evenly distributed over and rubbed into the backs and beare provided with averlin tween the sections of the books.V The backs of. the books are then carried over the relatively tilted brushes which Aremove excess adhesive. After the books have` pas l over the brushes G5, the operator reinoves there frein the carriage and places theni upon the table 13 or at any other point of vantage, after which the covers are applied, or the books separated and lett to dry for the next operation, when books are bound with a stili cover. The next operation is usually rounding and baokinO. he carriage continues its travel in the reverse direction until it again occnpies the position shown in Fig. 1, at which point the arin del on the shaft 23 engages the roller i3 on the arm 37, which results in a disengagement of the clutch 36 and an interruption in the rotational movement of the carriageactuating shaft 23.

It should be noted that due to the angularity ont the books with respect to the ot the brush, the exposed edges ot the books are swept clean ot' adhesive, while the edges oit the books against the carriage are protected from excess adhesive by the lower edge of the surn faces against which the books bear. In seine instances, rubber aprons 105, see Fig'. 8, are used at the bottoni of the flanges abutting the books, these aprons registering' at their lower edges with the plane of the book backs and by lying snugly against the sides of the books confining` the adhesive to the backs of the books only. The adhesive in the receptacle is kept agitated by the continuous rotation oit the brush, but the speed of said rotation is so slow to avoid rothing the adhesive. In operative position, however, the speed ot the brush is increased to the desired ext-ent.

I claiin:

l. In a book back gluing machine, the` corabination with a reciprocatory for the books, ot ah rotary adhesive applicator elen nient positioned adjacent the path otl said carriage, inechanisin or rotating; the applicator, means movable with the carriage for actuating said rotating,` mechanism, and ineens rer rendering said actuating means e'iiective in one directional inoveinent ot the carriage only.

2. In abook back tfgLuing inachine, the cornbination with a reciprocatory carriage 'for the books, of a `rotary adhesive applicator element mounted adjacent the path ot said carriage, mechanism for rotating the applicator, and ineans on said carriage tor actuating the said mechanism.

In a book back gluing inachine, the coinbinat-ion with a reciprocatory carriage for the books, of a rotary adhesive applicator mounted adjacent the path ot the cai-r' mechanism for rotating the applicator. a clutch controlling the operative connection between the applicator and the said mecha,- nistn, and ineans on said carriage for actuating the clutch.

1l. In a book back gluing machine, the coinbination with a movable Vcarriage for the books, ot a rotary adhesive applicator eleinent located adjacent the path of the carriage, inech ani sin tor rotating the applicator, a norinally disconnected clutch controlling` the operative connection between the said noechanisin andthe applicator, and clntchactuating,` ineans on the carriage' adapted to engage the clutch when the carriage is advanced over the applicator.

5. In a book back gluingmachine, the co1n bination with reciprocatory carriage, of a rotary adhesive applicator eleinent located adjacent the path ot said carriage, inechanisni for rotating` the applicator, a normally disconnected clutch ccntrollinLe,` the connection between the said inechanisin and the applicator, and clutclbactnatinf; and cooperative ineans operatively associated with the carriage .and with the clutch whereby the latter is engaged during inoveinent in one direction only ot said carriage.

li Ii book lack n ation with a reciprocato sive apjilicator red j a one direction pplicator from a ncrit into Contact with eid carriage.

ack nii-1Q; nachine, t proce` carri t 'ive a apli lator incanta carriage, inech inclndirn in oscillatory levell for ns. the app .icator to bring;` it into con- .e books in iid carriage, and 've nieans on. the carriage and on latoiy element. whereby the latter natea during tire inoveinent in one din only of s: 'i

tbelatter i 1..'

d aatoinatic sneed ot rotation of i with the said L -ontzzct inachine, the coincarriage Jfor the applicater inea tlc cariage a nd book back gluing; machine, the vitl n movable carriage, ci

in for norlili) mally rotating the applicator, and means actuated by the carriage in its normal movement for increasing the speed of rotation ot the said applicator.

il. In a book back gluing machine, the combination with a movable carriage for the books, of a rotary adhesive applicator mounted adjacent the path ot the carriage, a relatively lixed brush also mounted adjacent the path of the carriage and adapted with the applicator` to be shifted into contact With the books moving in said carriage, and mechanism operating in synchronism with the movement oi the carriage tor elevating the applicator and the brush.

l2. In a `book back gluing machine, the combination with a reciprocatory carriage, ot' rotary ad iesive applicator mounted adjacent the path ot the carriage, means for normally rotating the applicator, and normally disconnected mechanism 'l'or increasing the speed of rotation ot' said applicator including cooperativo means on the carriage Yior actuating the accelerating mechanism during the movement inone direction only oi' said carriage.

8. In a book back gluing machine, the combination with a movable carriage for the books, ot a rotary adhesive applicator mounted adjacent the path of said carriage, a container l'or adhesive in which the applicator is normally rotated, mechanism for periodically elevating the applicator to bring it into contact with books moving with said carriage, and means automatically operative with the elevation of the applicator to increase the speed or rotation oic the latter.

la. In a book back gluing machine, the combination with a rotary adhesive applicator element, of a receptacle for adhesive, means for normally rotating the applicator at a comparatively low speed Within the receptacle, mechanism for periodically elevating the applicator to an operative position above the receptacle, and mechanism automatically operative to increase the speed of rotation of said applicator While in the elevated position.

15. In a book back gluing machine, the combination Wit-h a reciprocatory carriage, of an adhesive applicator mounted adjacent the path ot the carriage and adapted to contact with books moving with the latter, and mechanism for actuating the carriage including automatic means for interrupting the movement thereof after each full reciprocation.

16. In a. book back gluing machine, the combination With a reciprocatory carriage, ot a gluing applicator positioned adjacent the path ot' the carriage and adapted to contact with the books in the carriage, mechanism for reciprocating the carriage including a rotary shaft, a source of power, and mechanism including a clutch for connectingl thc shaft with said source ot power, manual means i'or engaging the clutch, and a cam member on the said shaft and adapted to dii'cngage the clutch following each full rotation of the shaft.

l?. In a book back gluing machine, the combination with a carriage, of an adhesive applicator located adjacent the path of the carriage and adapted to contact with the books in the carriage, mechanism for reciprocating the carriage including a rotary shaft, an arm on the shaft, a pinion journaled on the arm, and a relatively fixed gear concentric. with the shaft and meshing with said pinion, a second arm pivotally securedv at the end et the first-mentioned arm, a gear fixed to said second arm and also 4meshing with said pinion, a rod pivotally secured ,to the outer end ol said second arm and connecting the arm to the carriage, and means for rotating said shaft.

18. In a book back gluing machine, the con'ibination with a trame having a horizontal platform at one end, ot a carriage adapted to reciprocate in the frame and having a pair of vertical Walls intersecting at right angles and forming an open bottom pocket directly overlying the said platform when the carriage is at that end ol the frame, mechanism for re ciprocating the carriage, and an adhesive applicator located adjacent the path of said carriage and adapted to contact with the backs ol" books held against said vertical Walls.

19. In a book back gluing machine, the combination with a carriage having a pocket formed by a pair of intersecting vertical walls adapted to receive books, said Walls being angularly arranged with respect to the direction of movement of said carriage, an adhesive applicator located adjacent the path of movement of said carriage and adapted to Contact with the exposed backs of the books held in said carriage pocket, and means for reciprocating the carriage over the said applicator.

20. In a book back gluing machine, the combination With a iframe having a platform at one end, of a carriage adapted to reciprocate in the frame and at one end of the frame occupying a position over the platform, said carriage having intersecting vertical Walls forming abutments for books supported by the said platform and against which the books are clamped as the carriage advances, mechanism lor reciprocating the carriage in the trame, and au adhesive applicator located adjacent the path of the carriage and adapted to contact with the backs ot' the books clamped as described in said frame.

2l. In a book back gluing machine, the combination with a frame having at one end a platform, of a carriage adapted to reciprocate in the trame and at one end of the frame occupying a position overlying the platform, a pair ot intersecting vertical Walls 1n said carriage with their lower edges lyingsubstantially in the plane of said platform whereby books supported With their backs on the platform and one side and edge against the respective Walls have their backs substantially on a level With the lower edge of said Walls, an adhesive applicator located adjacent the path of the carriage and adapted to Contact with the backs of the said books clamped against the said vertical Walls of the carriage, and mechanism for moving` the carriage over the applicator.

22. In a book back gluing machine, the combination of a movable carriage in which the hooks may be clamped Wit-h the blacks eX- Vposed, an adhesive applicator extending vtransversely of the path of the carriage and adapted to contact with the backs ot the books as the carriage is advanced, and means for supporting the books in the carriage so that all the bach edges thereoi` are angularly arranged with respect to said applicator.

23. In a hook back gluing machine, the combination of a movable carriage in which the books may he clamped With the hacks exposed, and an adhesive applicator extending transversely of the path of the carriage and at angle with respect to all the hach edges of the books clamped in said carriage, said applicator being adapted to Contact With the hacks of the books as the carriage is advanced.

24. ln a hook back gluing machine, the combination With a traine having at one end platform, et a carriage adapted to reciprocate in the traine and at one end of the traine occapg,y g a position overlying the plat'ornr a pair ot intersecting vertical Walls in said carriage against which the books may be clamped with their hacks exposed at theunder side of the carriage, said platform constitut-ing a support and gage for positioning the books With respect to the said Walls, an adhesive applicator located adjacent the path of the carriage and adapted to Contact with the backs of the books clamped against the Walls oi" the carriage, means for advancing the carriage over the applicator, and flexible aprons at the lower edges of said vertical Walls Whose lower edges are substantially in the plane o'lsaid bool; hacks.

JOI-IN J. PLEGER. 

